llvm-project/llvm/lib/MC/MCParser
Akira Hatanaka 8ad7399f8e [MachO] Stop generating *coal* sections.
Recommit r250342: move coal-sections-powerpc.s to subdirectory for powerpc.

Some background on why we don't have to use *coal* sections anymore:
Long ago when C++ was new and "weak" had not been standardized, an attempt was
made in cctools to support C++ inlines that can be coalesced by putting them
into their own section (TEXT/textcoal_nt instead of TEXT/text).

The current macho linker supports the weak-def bit on any symbol to allow it to
be coalesced, but the compiler still puts weak-def functions/data into alternate
section names, which the linker must map back to the base section name.

This patch makes changes that are necessary to prevent the compiler from using
the "coal" sections and have it use the non-coal sections instead when the
target architecture is not powerpc:

TEXT/textcoal_nt instead use TEXT/text
TEXT/const_coal instead use TEXT/const
DATA/datacoal_nt instead use DATA/data

If the target is powerpc, we continue to use the *coal* sections since anyone
targeting powerpc is probably using an old linker that doesn't have support for
the weak-def bits.

Also, have the assembler issue a warning if it encounters a *coal* section in
the assembly file and inform the users to use the non-coal sections instead.

rdar://problem/14265330

Differential Revision: http://reviews.llvm.org/D13188

llvm-svn: 250370
2015-10-15 05:28:38 +00:00
..
AsmLexer.cpp Extend MCAsmLexer so that it can peek forward several tokens 2015-08-17 14:35:25 +00:00
AsmParser.cpp Change isUIntN/isIntN calls with constant N to use the template version. NFC 2015-10-10 20:17:07 +00:00
CMakeLists.txt Fix header path in CMake. NFC. 2015-06-19 20:49:02 +00:00
COFFAsmParser.cpp Revert r240137 (Fixed/added namespace ending comments using clang-tidy. NFC) 2015-06-23 09:49:53 +00:00
DarwinAsmParser.cpp [MachO] Stop generating *coal* sections. 2015-10-15 05:28:38 +00:00
ELFAsmParser.cpp Fix PR23872: Integrated assembler error message when using .type directive with @ in AArch32 assembly. 2015-07-01 08:58:49 +00:00
LLVMBuild.txt
MCAsmLexer.cpp
MCAsmParser.cpp
MCAsmParserExtension.cpp
MCTargetAsmParser.cpp [llvm-mc] Pushing plumbing through for --fatal-warnings flag. 2015-07-27 21:56:53 +00:00
Makefile